/*
 *  Copyright 2019-2021 Diligent Graphics LLC
 *  Copyright 2015-2019 Egor Yusov
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  In no event and under no legal theory, whether in tort (including negligence),
 *  contract, or otherwise, unless required by applicable law (such as deliberate
 *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
 *  liable for any damages, including any direct, indirect, special, incidental,
 *  or consequential damages of any character arising as a result of this License or
 *  out of the use or inability to use the software (including but not limited to damages
 *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and
 *  all other commercial damages or losses), even if such Contributor has been advised
 *  of the possibility of such damages.
 */

#pragma once

#include "../../Platforms/Basic/interface/DebugUtilities.hpp"
#include "CompilerDefinitions.h"

template <typename DstType, typename SrcType>
NODISCARD DstType* ClassPtrCast(SrcType* Ptr)
{
#ifdef DILIGENT_DEBUG
    if (Ptr != nullptr)
    {
        CHECK_DYNAMIC_TYPE(DstType, Ptr);
    }
#endif
    return static_cast<DstType*>(Ptr);
}


template <typename DstType, typename SrcType>
NODISCARD DstType BitCast(const SrcType& Src)
{
    static_assert(sizeof(DstType) >= sizeof(SrcType), "DstType size must be greater than or equal to SrcType size");
    DstType Dst = static_cast<DstType>(0);
    memcpy(&Dst, &Src, sizeof(Src));
    return Dst;
}


template <typename DstType, typename SrcType>
NODISCARD DstType StaticCast(const SrcType& Src)
{
#ifdef DILIGENT_DEBUG
    using MaxType = decltype(DstType{1} + SrcType{1});
    VERIFY(static_cast<MaxType>(Src) == static_cast<MaxType>(static_cast<DstType>(Src)), "Cast will lose data");
#endif
    return static_cast<DstType>(Src);
}
